Sound

Concrete sound mirrors, used in the UK to intercept coastal attacks in the aftermath of the first world war, are captured in this photography series by Piercarclo Quecchia. Sound mirrors are disc-shaped passive structures that are used to reflect and concentrate acoustic waves. They were used during the 1920s to intercept planes headed for the coast. Most

Concrete sound mirrors, used in the UK to intercept coastal attacks in the aftermath of the first world war, are captured in this photography series by Piercarclo Quecchia. Sound mirrors are disc-shaped passive structures that are used to reflect and concentrate acoustic waves. They were used during the 1920s to intercept planes headed for the coast. Most